Top 20 Key Players companies in Photomask by Most Patent Citation in the China in 2018 – Discovery

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1	United Microelectronics Corp.	Taiwan Province, China	Semiconductor,Electronics,CMOS, ...[+2]	patent citation: 959
2	Macronix International Co., Ltd.	Taiwan Province, China	Semiconductor,Read-only memory,Non-volatile memory, ...[+2]	patent citation: 630
3	ProMOS Technologies, Inc.	Taiwan Province, China	Semiconductor,Double data rate,Electronic component, ...[+2]	patent citation: 417
4	Vanguard International Semiconductor Corp.	Taiwan Province, China	Semiconductor,Integrated circuit,Electronic component, ...[+1]	patent citation: 413
5	Guizhou Yihua Co. Ltd.	Guizhou Sheng, China	Fertilizer,Agriculture,Chemical engineering	patent citation: 350
6	Winbond Electronics Corp.	Taiwan Province, China	Flash memory,Electronics,Computer hardware, ...[+2]	patent citation: 277
7	Nanya Technology Corp.	Taiwan Province, China	Semiconductor,Product design,Industrial engineering, ...[+2]	patent citation: 96
8	Semiconductor Manufacturing International	Shanghai Shi, China	Semiconductor,Computer hardware,Integrated circuit, ...[+2]	patent citation: 82
9	Hewlett-Packard Development Co.	Beijing Shi, China	Personal computer,Computer hardware,Graphics processing unit, ...[+2]	patent citation: 72
10	Chunghwa Picture Tubes Ltd.	Taiwan Province, China	Electronics,Electronic visual display,Liquid-crystal display, ...[+2]	patent citation: 53
11	Shanghai Huali Microelectronics Corp.	Shandong Sheng, China	Microelectronics,Tariff,Food industry	patent citation: 47
12	Hannstar Display Corp.	Taiwan Province, China	Electronic visual display,Electronics,Digital photo frame, ...[+2]	patent citation: 44
13	ChangXin Memory Technologies, Inc.	Anhui Sheng, China	Tariff	patent citation: 44
14	Gudeng Precision Industrial Co., Ltd.	Taiwan Province, China	Reticle,Automation,Manufacturing engineering, ...[+2]	patent citation: 36
15	Transcend Optronics (Yangzhou) Co. Ltd.	Jiangsu Sheng, China	Electronic component,Computer hardware,Electronics, ...[+1]	patent citation: 29
16	Tianma Microelectronics Co., Ltd.	Shanghai Shi, China	Liquid-crystal display,Telecommunications,Peripheral, ...[+2]	patent citation: 27
17	Shanghai Tianma Microelectronics Co., Ltd.	Shanghai Shi, China	Liquid-crystal display,Computer hardware,Electronics, ...[+1]	patent citation: 27
18	China Academy of Telecommunications Technology	Beijing Shi, China	Information security,Telecommunications,Network security	patent citation: 24
19	Arima Optoelectronics Corp.	Taiwan Province, China	Semiconductor,Electronics,Backlight, ...[+2]	patent citation: 19
20	Artilux, Inc.	Taiwan Province, China	Optical communication,Enterprise software,Software, ...[+2]	patent citation: 18